Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4RSM callsign genealogy
Currently held by Marks, Richard S
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by N4RSM's current licensee, walking backwards.
- Marks, Richard SSCgranted 2021-04-15cancelled 2021-08-17
Successor callsigns
Callsigns held now by people who previously held N4RSM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4RSM, oldest first.
- SCARR, DANIEL J CA2006-12-27 → cancelled 2019-02-20
- Marks, Richard S SC2021-08-17 active